Yi quan 意拳, also known as Dacheng quan 大成拳 , is a martial art system founded by the Chinese Xingyiquan master Wang Xiangzhai (王薌齋).The actual training in yiquan can generally be divided into:

Zhan zhuang (站樁) Standing pole postures where emphasis is put on natural condition, working to improve listening to the body and on developing hunyuan li, "Natural living force" or "all things that make the whole".Shi li (試力) Testing force moving exercises, trying to bring the sensations of hunyuan li developed through Zhan zhuang into movements.All of the other practices can be put into one of these two methods.

Different schools practice some degree of different footworks, (Bu Fa and Mo ca Bu), and different movements leading towards free expression of the collected state.

Principle of Nature: All truth and action occur in Shunjian, the split second of now. Everything before and after this moment is 'Wu', the Void, and thus, uncontrollable or unknowable. All objective and preconception is fixed and not in accordance with this undetermined state of Nature. "The Dao that is called the Dao is not the eternal Dao".